USRE11212E - Steam-generator for street-cars - Google Patents

Description

3 Sheets-Sheetnl. E. G. WHEELER. Assignor to A. H. DAILEY. STEAM GENERATOR POR STREET GARS.

Reissued Dec. 22, 1891.

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STEAM GENERTOR POR STREET GARS.

No. 11,212. ReissuedDec. 22,1891.-

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FREDERICK G. VHEELER, OF NEV YORK, ASSIGN OR TO ABRAM ll. DAILEY OF BROOKLYN, NEV YORK.

STEAM-fGENERTOR FOR STREET-CARS.

' SPECIFICATION forming part of Reis-sued Letters Patent No. 11,212, dated December 22, 1891.

Original No. 299,607, dated .Tune 3, 1884. Application for reissue iiled September 5J 1891. Serial No. 404,903.

To aZZ whom it may concern: p

Be it known that I, FREDERICK GRIDLEY NVHEELER, of New York city, county of New York, and State ofNew York,have invented new and useful Improvements in Steam-Generators for Street-Oar or other Locomotive- Engines; and l do-hereby declare that the following is a full and exact description of the saine, reference being had to/the accompanying drawings, and to the letters ot reference marked thereon.

This inventionV consists, mainly, iirst, in the combination ot a fire-box for supplying the requisite heat to produce the steam or sustain that already produced with a water-chamber in contact with the lire-box and a system of water-tubes communicating therewith not in contact with the fire-box; second, in the combination of the lire-box 'and smoke-flue with a water-box of special construction, the smokeflue being turned downward into the waterboX under the car, the box catching and retaining the surplus products of combustion, and, third, in the combination, with a steamjet pipe, ot' a smoke-flue and a water-box, all of which will be fully described hereinafter.

ln the drawings, Figure 1 represents a side elevation of a street-car niotor having iny invention applied thereto, showing a side View of the tubes on one side; Fig. 2, an end view of the same, partially in section; Fig. 3, a plan view of the ire-boX,partially in section, showing smoke-flue and tube connections; Fig. 4., a plan View of the water-box, exhaust-chainber, and the connection of the exhaust-chainber and water-flue with the water-box; Fig. 5, a longitudinal vertical section, on an enlarged scale, of the water-box and the parts immediately connected therewith. Fig. 6 is an end elevation of the-hood or return-bend connecting the tubes. A

To enable others skilled in the art to make my invention and properly use the saine,l will proceed to describe fully its construction and manner of operation.

A represents an engine at one end of the motor, the actuating mechanism ot which may be of any proper construction, this portion of the same forming no part of my invention.

B,'Figs.4 l., 2,and 3, represents a small re- O 0,' Figs. 1, 2, and 3, represent short pipes of comparatively small size leading from the front side of the water-chamber to the rear end of the large tubes D D, the two being united by a flanged connection of proper construction in a manner well understood.`

E, Figs. 1, 2, and 6, represents hoods or return-bends, (fully illustrated in'Fig. 6,) consisting of a casting having a central tube-like portion e and end portions ef c', with openings e2 e2, adapted to receive and connect the ends of adjacent pipes by flanges, as shown. By means ot these hoods the front ends of the tubes D D are united to the front ends of the tubes F F, as shown in Fig. 2, thus making a connecting extension in both series of tubes.

G G, Fig. 2, representlioods or return-bends of similar construction at the opposite end, by means of which the rear ends of the tubesFF are united to the rear ends of the tubes H l-I.

l l, Fig. 2, represent hoods or return-bends of similar construction at the opposite end, by means of which the front ends of the tubes Il H are united to the front ends of the tubes K K, Fig. 2, repres'ent hoods or return-bends of similar construction at the opposite end,

vby means of which the rear ends of the tubes J J are united to the upper enlarged tubes or l IOO circulation whenthe water-volumecontained therein is subjected to the action of heat.

N N, Figs. 1 and 2, represent auxiliary pipes leading from the upper side of the water- 5 chamber into the upper side of the domes L L, as shown,by which the circulation of water through the domes is accelerated, because it more directly'connects the domes with the forming a reservoir or boiler in which the water is held under heat or pressure.

O, Fig. 1, represents a cock by meansot' which both systems of. tubes are supplied with Water through the water-chamber.

P, Figs. 1, 3, 4, and 5, represents the smokeflue consisting of a pipe of suitable length, which extends .in a circuitousV line from the tire-box to the water-box beneath the car, the discharge end of the same .opening on the 2 5 surface of the Water, as shown in Fig. 5.

Q, Fig. l, represents a small steam-pipe extending from .one of the domes, the discharge end of which opens into the smoke-flue at any suitable point in its length. By means 3o of this construction a jet of steam maybe thrown into the chimney, and the steam be,-Y

ingpof lower temperature than the products of combustion the latter will be cooled, carried forward into contact withthe water-box, and there further cooled.

R, Figs. 1 and 5, Vrepresents the water-box` 45 from the tank S is discharged through the..

spraying vdevice into the water-box beneath the car. The spraying device, it will be observed, is provided with a cone s2, Fig. 5, for,

dividing the water-stream and discharging it 5o equally on all sides.

I fr represents a basin for receiving thewatergfrom the spraying device swhich .device itself receives water through the pipe s. from the tank S, located at the top of the engine,

shown in Figs. 1 and2. -The interior basin 4 is provided on the outer edge or Aflange with,Y

apertures, through which the ovcrilow vwater escapesand passes down into the bottom of the water-box, whence it is returned throughL 6.o the ejectorpipe to the tank S. By this construction the basin r will be kept full of water, whil e the. water belowit may be returned` to the tank.

r', Fig. 5, represents a chamber adapted to, receivethe overflow-water from the basin through proper openings in the iiange, as

shown in Fig. 4.

frz, Fig. 5, represents an injectorpipe, by i exhaust steam is delivered from the cylinders, by which its .force is weakened.

V V, Figs. 1 and 2,'represent pipes leading ,fromthe topvof the domcsinto a central pipe X, froln'which theY supply.` of steamfor the .cylindersis drawn in anyproper manner.

The operation of ,my invention is substantially as follows.' TheY water-chamber` and tubesystem having been supplied with water,y either cold or hot, through the cock O until the domes LVL are half-full of water,

.and the fire-box having been supplied with fuel,the following operation will result under the action of heat: The water inthe Water-chamber will be caused Vto Y passthrough the various pipes and hoods to thev domes and then back again to the chamber, a continuous circulation of heated water thus being maintained. Thesteam generated under the action of the heat will accumulate in the domes and-be drawn otfas needed through the central connecting-pipe X tothe cylinders on each side of the car. As the water is Adiminished in volume thepressure of the steam isv increased. [This results fromthe increase in the area of the fevaporat11g-surface and the elevation of the temperature of thewater. The surplus products of combustion from the fire-box are carried downward through the smoke-flue into .the water-box' beneath the engine and discharged upon its surface. By means of this action a large portion 'of the smoke and gases is caught and retained. y The draft is-increased at any time, if desired, by the proper use of the blow-pipe in thesmokeiiue.

The purpose of this invention is to supply a means of propelling street or other cars without the kuse ofanimal power, and is especially adapted for carrying practically into effect the process of supplying motive heat to railroad-cars described in the patent ofE. H. Angamar, November 27, 1877, No. 197,584, in which water raised to aA boiling-point in a stationary boiler. is supplied to the waterchamber in the motor-car; but it may beemployed, if desired, without using this process.

Some Vof the advantages of the described construction are as follows: By the employment of .a system ofvtubes in the man nerdescribed the heat of the Water volume is more perfectly maintained and the circulation communicating with pipe T,'into which the A IOC IIO

more easily effected than when small tubes are employed. By locating the main portion of the circulating system out of contact with the tire-box the portion in contact therewith is kept covered with water, and the steamgenerator or space Where the water-assumes the form of vapor or steam, being kept en tirely distinct from the fire-box, renders it impossible for the steam to come in contact with the heated surface or for eXplosiveconditions to occur. By discharging the surplus products of combustion and the exhauststeam through a condensing medium into a Water-box beneath Vthe car the objection of escaping smoke or steamis avoided.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a motor, and in combination, a reservoir composed of a system of connected tubes adapted to contain heated water under pressure, a lire-box mounted upon said motor, a water-chamber in contact with the nre-box and having connections with the reservoir, whereby circulation is maintained, a steamdome, an engine, and pipes connecting said steam-dome with the engine, all substantially as described.

2. In a motor, and in combination, a reservoir composed of a system of connected tubes adapted to contain heated Water under pressure, a fire-box mounted upon said motor, a Water-chamber in contact with the {ire-box and having connections with the reservoir, whereby circulation is maintained, a steamdome, an engine and connections between the,

steam-dome and engine, a condenser connected with the exhaust, and means for receiving the smoke, all substantially as described.

In combination with the water-chamber surrounding the lire-box, the circulating system of pipes and tubes, and. the auxiliary pipes M M and N N, as described.

4. The Water box having the basin, the chamber, and the injector-pipe, as described.

5. A steam street-car or locomotive containing the following elements working in combination, substantially as herein described, namely: a nre-box and surrounding Waterchamber, a tube system connected with waterchamber, an engine taking steam from tube system, a Water-box communicating with the chimney of the tire-box, a steam-jet in the chimney to eject and cool the products of combustion and regulate chimney-draft, a water tank and spray tocondense the exhaust-steam an ejector-pipe to return the water of the water-box to the tank, all as set forth.

6. In a steam street-car or locomotive, the Water-box R, constructed with aninterior water-basin r, the flanges of which have openings to allow the descent of the surplus water into the bottom of the box R, substantially as herein shown and described.

'7. In combination with the fire-box and smoke-Hue, a closed water-box having perforations, as described, the products of combustion being discharged into said box upon the top of4 the water, as scribed.

.8. In combination with a water-chamber in contact with the nre-box and a system of Water-tubes not in contact with the fire-box, a

vcock O for receiving a heated water-supply from a stationary boiler, as described.

9. In combination with the steam-jet pipe Q, the iue P, and the Water-box R, having the series of openings r3, as described.

l0. In combination with a steam-dome, a pipe for supplying a locomotive or street-car engine therefrom, a series of directly-connected Water-tubes remote from the source of heat and in connection with the steam-dome, forming a storage and circulating system for water heated before entering the tubes to a degree which shall evolve steam. This specification signed and witnessed this 12th day of August, 1891.

FREDERICK G. WHEELER. Witnesses:

WILLIAM N. JOHNSON, CHARLES F. THOMAS.

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